Here is the full list of all 39 Sherlock Holmes Chapter One achievements.
Get every achievement.
Get justice for Fabio.
Always advocate for the refugees.
Punch first, ask questions later.
Refuse to help Mycroft.
Try to take the easy way out.
Kill fifteen enemies.
Complete all Cordona Stories.
Remember everything.
Lift the curtain on bohemian life.
Refurbish the entire manor.
Let an old man have his retirement.
Solve all the cases for the police.
Open the cabinet of curiosities.
Fight in all of the bandit lairs.
Take pity on a poor girl.
Present accurate evidence in all accusations.
Follow the rules of the Blind Duelling Club.
Interrogate every suspect in the safe murder as a police officer.
Talk to The Pipe in the correct disguise.
Investigate the third accident.
Spare the landlady's feelings.
Find the book.
Kill five enemies.
Hold an eel by the tail.
Disappoint Mycroft.
Talk to Dilwyn in his hat.
Open Violet's room.
Save Goliath's life.
Find all the books in the Bazookaeology trilogy.
Acquire Sherlock's famous violin.
Disorient ten enemies with the snuffbox.
Open Sherlock's room.
Arrest twenty-five enemies.
Uncover all of the treasures.
Arrest ten enemies.
Prank Mrs. Nini.
Solve the first case on Cordona.
Eavesdrop on your first piece of gossip.